Twin Air Air Box Cover Honda CRF250R / RX / CRF450R / R-S / RX / WE 2017-2022 - RevZilla
Holes in the airbox - Moto-Related - Motocross Forums / Message Boards - Vital MX
Check out the new air box and top-mounting air filter on the 2021 Honda CRF450. People have also asked about the black box above the counter shaft... | By Motocross Action | Facebook
MXA TEAM TESTED: TWIN AIR 2021-2023 CRF450 POWERFLOW KIT - Motocross Action Magazine
CRF's Only - How to open up the air box on a Honda CRF450X